Water-heater.



P. GIRTANNER.

WATER HEATER.

APPLICATION FILED APR. 1o, 1912.

Patented Sept. 15, 1914.

31 QW/fla 11 Y 3 0 'lmnullllllllzx-lulul F. GIRTANNER.

WATER HEATER..

APPLICATION FILED 1211.10, 1912.

1,1 10,484. Patented sept. 15,1914.

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YFREDERICK GIRENNER, OF ST. LOUS, MISSOUR.

j WATER-HEATER.

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T0 all whom t may concern )ie it known 'that l, FREDERICK Gia'rnN- Nini, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Flater-Heater, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to 'make and use the same, reference being had to the accompany drawings, forming part of this specification.

My invention relates to water heaters, and, more particularly, to' that class of water heaters which are portable and which are adapted to be immersed in the water to be heated.

ln the accompanying drawings, which illustrate one form of water heater made in accordance with my invention, Figure 1 is a vertical section; Fig. 2 is a vertical section on the line 2 2 of Fig. 3; Fig. 3 is a side elevation, some of the parts being shown in section; F ig. e is a perspective view, showing the upper end of the burner tube; Fig. 5 is a top plan view, some of the parts being broken away; Fig. 6 is a section through the burner tube; Fig. 7 is a perspective view, showing the lower end of the burner tubs,

Like marks of reference refer to similar parts in the several views of the drawings.

10 represents the body of the heater within which is the combustion chamber; passing laterally through this combustion chamber are a pair of small water tubes 11 and a pair of large water tubes 12. Contained within the water tubes 12 are weights 13 for holding the heater in its submerged position in the water; these weights 13 are provided with lugs 14 which space them from the tubes 12 so as to leave a substantially uniform water space between the two parts. An outer burner containing tube 15 is secured to the top of the body 10 by a water tight joint. Within this outer burner containing tube 15 is an inner burner tube 16, best shown inFig. 6; the upper end of this inner burner tube is provided with a mixer 17 of any suitable form, to which is attached a flexible gas tube 18. The lower end of the burner tube 16 is provided with a burner cap 19 which is provided on its lower end with openings 2O for the discharge of the gas, and at opposite sides with openings 21. The tube 16 is removable from the tube 15 and in order that when the tube 16 is inserted in the tube 15, the openings 21 Speccation of Letters Patent;

Patented Sept. 15. 1914.

seriai no. esatto.

rshown in Fig. l. Burner slots 21 are arranged to throw the laine to the forward and rear parts of trie combustion chamber, but not to throwy the liarne laterally. In order to supply the combustion chamber wi th air, I place at each side of the burner tube 15, inlet tubes 25, best shown in Fig. 2; these tubes, as will be seen from this figure, pass down through the top of the combustion chamber to a point adjacent to the bottom of the combustion chamber; the tubes are open both at the top and bottom and taper slightly toward their lower ends, as clearly shown in the drawings. I have found that the tapering of the tubes 25, together with the fact that they extend slightly below the burner 19, insures the proper flow of air through the heater such as can not be obtained without'the use of these features. in order that the products of combustion may escape from the combustion chamber with a passage 26 terminating in an upwardlyr projecting iiue 2; this flue 27 is arranged adjacent to the inlet flue 2,5; 28 designates handles which are carried by brackets 29. lt is often desirableto carry away the products of combustion with heaters ofthis class and, in order to accomplish this, l provide a hood 30 which covers and surrounds outlet llue 27 as shown in Figs. 1 and 3; this hood 30 is preferably supported by means of the brackets 29 which carry the handles 28; the hood 30 is provided at one side with a slot 31 for the passage of the gas tube 18, as best shown in Fig. 3.

The operation of my device is as follows: The body of the heater is submerged in the water to be heated. rhe water should cover both the main body of the heater and the upper passages 26 to the depth of several inches. In order tolight the burner, the hood 30 is iirst removed and then the inner burner tube 16 is withdrawn from the outer burner containing tube 15 and the gas, after being turned on, is lighted at the cap 19. The inner burner tube 16 is then inserted within the outer burner containing tube 15, and, as has been previously described, the projection 22 on the inner burner tube 16 will lit in the slot 23 on the outer burner tube 15, and thus cause the burner slots 21 to throw the flames to each end of the combustion chamber but to prevent them from being thrown against the inlet tubes 25; in this way, a proper` circulation of air in the combustion chamber is insured. After the burner has been lighted, the conical hood 30 may be replaced to carry away the products of combustion at any suitable point. The body of the heater, owing to its term and the use of the water tubes ll and l2, presents a large heating surface tothe water and thus insures rapidity of action of the heater.

Having fully described my invention, what claim as new and desire to secure by Letters Patent ot the United States is:

l. ln a water heater, the combination with a combustion chamber adapted to be submerged in the water to be heated, ot water tubes passing laterally through said combustion chamber, weights tor overcoming the buoyancy of the heater, said weights being arranged within said water tubes, so as to allow the circulation of the water, a burner for said combustion chamber, and inlet and outlet passages for said chamber.

2. In a water heater, the combination with a combustion chamber adapted to be submerged in the water to be heated, of water tubes passing laterally through said conibustion chamber, weights in said water tubes, said weights being provided with lugs for spacing the same from the walls of the tubes, and aburner for said combustion chamber.

3. n a water heater, the combination with a combustion chamber adapted to be submerged in the water to be heated, ot inlet and outlet passages for said combustion chamber, a burner, a supply pipe tor said burner, and a removable hood for the outlet of said combustion chamber, said hood being slotted tor the passage of the supply pipe.

4. ln a water heater, the combination of a combustion chamber adapted to be submerged in the water to be heated, a tube communicating with the central portion ot the combustion chamber forming a passage for the insertion and removal of the burner, a burner supported in the central portion of the combustion chamber and removable through the said tube, a tapering Vair supply tube communicating with the combustion chamber at a point adjacent to the burner, ano two outlet conduits tor the y combustion chamber communicating with the said chamber on opposite sides ot the burner and at points removed in a horizontal direction trom the burner.

5. ln a water heater, the combination of a horizontally extending box-like combustion chamber, a tube con'imunicating with said chamber at the center ot its upper portion and forming a passage for the insertion and removal of the burner, a burner supported in the central portion of the combustion chamber and removable through said tube, a tapering air supply tube communicating with the combustion chamber at a point adjacent to the burner, two outlet conduits communicating with the combustion chamber at points removed in a horizontal direction troni the burner, and water tubes extending through the combustion chamber.

ln testimony whereof, l have hereunto set my hand and afiixed my seal in the pres ence ot the two subscribing witnesses.

R FREDERICK GIRTANNER.

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Copies of thi! patent may be obtained for five cents each, by addressing the Commissioner of Patents` Washington, D. C. 

